Cylinder honing device



Nov. 18, 1930. F. c. MOSER I 1,781,356

CYLINDER HONING DEVICE Filed Feb. 26, 1929 2 Sheets-Sheet 1 I N VEN TOR. Freder/bk C. Maser Nov. 18, 1930. F. c. MOSER 1,781,856

CYLINDER HONING DEVICE Filed Feb. 26, 1929 2 Sheets-Sheet 2 pi" i a 5; *r 6 O C e \Q, INVENTOR.

Frederick C. Maser ATTORNEY 7 BY 5 wwq ram shown a preferred Patented Nov. 18 1930 rename: uQsEa-i rlmsr 330 K; raw-ammo i i I oYnrnnEnfnoninq nnvronf firp et bi l d fin s: 1. s- 1 a i' 2 99 My invention relatesto cylinder finishing device's, relating inparticular to a device for hone finishing the bore'of'cylinders.

' V f Myinventio'n has for'its principal objects,

:6 to provide a device constructed of few-parts; which will automaticallylock the Working. parts thereof against possible movement during operation; that will present practically and r placed by others; andto providea'de vice having flexible balanced pressure means for'securing the tools in place and thatwill be disposed wheresameis out Of theway of lfi'injury thereto.

will appear from the descriptionjfollowi'ng later.f' -V In the acc panying drawings, 1 have embodiment of in- Other objects and advantages of the device Vvention,wherein i r Figu're I is a side elevationof-the device. Figure 2'is1a' view 0 the one en lo'f Fig- Figure 3is an end'view of the opposite-end of Figure 1. i

Figure 4 is a sectionaLview through Figure 1 on'line IV looking-in thedirectionlindi cated by the arrows.

sleev r g I Figure 6is'a side view thereof. j v Figure '1 is a side View of the operating mandrel. "y Figure-8 is, an 'end view'thereof.

- holders and bone tool.

' "Figure 10. isa cross sectional view through the sleeve housing5 and 1 V Figure ll'is a cross sectional vie'w through 'the'acljusting-nut.

Similar numerals refer to similar parts throughout the several views.

The'devi'cecomprisesa mandrel 1, adapted to be rotated by suitable; power,- through the -xm edium of a flexible shaft, or otherwise. V

The mandrel is provided upon its reduced or power applied end: portion" with a screw thread 2 and has formed-within its larger shoulderedbody .Qartion a" plurality of int-length thereof.

T larged'body portion condition and may be readily removed by v V a 'uncouplingx Figure 9 153. SldB"Y1eW- of; one o'fth'e tool i The: nut- 17 has, suitable provided:- on the housingin adjusting the clined channels orseats 3 extending the entire has slidably fitted thereon a sleeve iyha'vihg slightshoulder=5- at one en'd'there'of and has 1 formed through its body aplurality of longitudinal elongatedopenings 6 registering with,

the inclined channels or seats 'of'the mandrel. 7 a solid-structureyto provide a device with r 10 hone tool holderst-hat can readily be removed A like number: of tool holders 7' are pro-' vided; each .havingfan integral base rib 8 -extend]nglongitudinally thereofan-d of substantially the same length as the holderyeach vbeing :inclinedata its surface portion 9 corre- 1 spon'ding'to thatjot-thechannels of theman- I drel. -These "holders aresupported upon 'the mandrel-and" are operated radially there r by, each "being fitted through one of the pm lIlgSfG 01* the carryingsleevefand seated or engaging in the mandrel channel registering 7 therewith. Each toolholder has a longitudinal slot '10 therein into. which is dovetailed-1y v fitted a gib or secondary holder 11, for the g I g A fby garter springs 14 passing througl'ropen- Figure 5 is an end yiew of the tool holding ings 15 adjacent the ends of the holdersand .andeye connecting ends to hold same in flexed 'Up'on the threaded portion' of the mandrel l is fitted the knurled adjusting nut 17; part? 1y enclosed by a housing 18; The housing, which is virtually a vpart of the sleeve is c 9 partly cut away, asshown so that the nut 1 may be ,operated'and isfsecured upon the,

shouldered portion5 of the sleeve by suitablescrews passed therethrough and into the i Y l ig ly and mov ily. c nn c g t same to said sleeve. 7 I V graduations 1 9- formedyupon its outer face any one ofwhich may be set to or register with'the mark 20 r of the mandrel K radially adjusted.

tools of the device to any desired measurement within the limits thereof.

It Will be apparent that the arrangements of parts present a substantially rigid structure,;or such'that the operating tools cannot move or become accidentlyadjusted and it is therefore selflocking. V

Again, it will be apparentthat in adjusting the sleeve carrying the tool holders, by movement of the nut, the said tool holders will under all conditions have firm seating their entire length in the mandrel channels and the springs being adjacentthe ends tion.

As the device may be employed for boring, gr nding, reaming or honing, I have used the Word tool throughout the specification, it being --understood that it includesfwhether a cutting or polishing elementbe employed;

l/Vhile I haveshown and described a preferred embodiment of my invention, I desire that said embodiment shall be regarded as illustrative only, and that the appended claims shall be accordedthe broadest construction consistent with the prior art.

' vVhatIclaim is 1.v In a device forthe purpose set forth,

- the combination of a mandrel having inclined channels spaced thereabout, tool holders correspond ngly nclined at their base and engaging within the sald channels, a honing tool secured in each of said holders, a sleeve within which the mandrel is slidably fitted and provided with openings through which said tool holders extend into the mandrel channels, and anut on said spindle cooperating with said sleeve whereby rotative adj ust- ;ment of said nut effects a longitudinal slidling movement of the sleeve on'the spindle and.v radial adjustment of the; tool holders therethrough.

' 2. In a device for'the purpose set forth,

the combination of a mandrel having in-- clined channelsspacedthereabout, a sleeve loosely fitted over said mandrel and provided with o'penings'therethrough which register with the said channels, tooliholders, each having an inclined rib thereoncorresponding thereabout informto andextending through the sleeve openings andseated in saidmandrel; channels, means for maintaining contactbetw' een the inclined surfaces of said mandrel channels and tool holders, said holders being movable longitudinally with the a sleeve, a nut on said spindle cooperating with said sleeve whereby rotative adjustment of said nut effects a longitudinal sliding movement of the sleeve and tool holders upon the spindle and radial adjustment of the tool;

holders therein. a V r 3. In a device for the purpose set forth, the

combination of a mandrel including a body 75,

portion and an integral direct drive shank portion of lesser diameter at one end thereof, said'shank'portion having a screw thread thereonand terminating in a drive end and said body portion having spaced longitudinally' disposed inclined channels formed therein, a sleeve loosely fitted over the body portion of said spindle and provided with longitudinal openings'throughits wallbetween the ends thereof and registerable with 35 the mandrel channels, tool-holders each having a longitudinal tool holding channel in the outer face thereof and an elongatedrib on the inner facecorrespondmgmform toand disposed through said sleeveopenings intone the mandrel channels and correspondingly tapered thereto, a honing tool secured in the channel of each holdeigan adjusting nut on the shank end of said-mandrel, aniextensionon'said sleeve within whlch said nut 1s P34- tially confined, saidnut adapted upon being rotatively adjusted'to effect ,a longitudinal sliding of saidsleeve and tool holders upon said mandrel to. radially adjust saidtool holders, and circumferentially disposed M springs passing through openings in the ends of said toolholders and engaging about said I sleeve and adapted to-maintain-'contact"between the mandrel and tool holders.

4:, In a'device for the-purpose set f0rth,-T=f' the combination of a unitary mandrel including a main body portion and an integral direct-drive shankof-lessdiameter at oneend thereof, said body portion having longitudinal inclined channels in spaced relation there-ca m about and said shank having a thread thereon, a nut ongsaid 'shank,,'a sleeveslidably fittedonthemandrel body and having elongated openings through the wall thereofbetween its ends-and registering with the man- 1115 -drel channel s,ahousing carried by one end of the sleeve and provided with an opening through :which the said shank extends, said housing partly enclosing the nut, said nut adapted when rotatively adjusted to slidably "12o adjust the sleeve longitudinally on the-mandrel, said channels and openings adapted to receive tool holders, V a

,5. 1n azdevice for the purpose setforth,

,the combination '-of a plain bore mandreli sleeve provided withspaced longitudinally disposed elongated Q openings extending through -.thewall thereof and further pro vided with exterior circumferentially dis posed grooves, tool-holders each carrying av honing tooland fittedfor radial adjustment in said elongated openings and each having openingstherethrough aligning circumferentially with the sleeve grooves, springs extending through said holder openings and engaging in sleeve grooves, and a nut housing on one end of said sleeve. 7

In testimony whereof I aflix my signature.

FREDERICK C. MOSER. 

